package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * *发送短信
     *
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();
        //判断手机号是否为空
        if (StringUtils.isNotEmpty(phone)) {
            //不为空
            String code = ValidateCodeUtils.generateValidateCode(4).toString();

            log.info("{}", code);
            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //将验证码存储到会话中
            //优化前    这时验证码利用会话技术  不能设置时间
            // session.setAttribute(phone, code);

            //优化后利用redis技术设置验证码存储时间  超时验证码自动删除
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);


            return R.success("短信验证码发送成功");
        }

        return R.error("短信验证码发送失败!");
    }

    /**
     * *服务端用户登录
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> userLogin(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());
        //获取前端传输的数据
        String phone = map.get("phone").toString();
        String code = map.get("code").toString();
        //获取会话中的验证码
        //Object phonecode = session.getAttribute(phone);

        Object phonecode = redisTemplate.opsForValue().get(phone);
        if (phonecode != null && phonecode.equals(code)) {
            //登录成功  判断是否是新用户
            LambdaQueryWrapper<User> lqw = new LambdaQueryWrapper<>();

            lqw.eq(User::getPhone, phone);
            User user = userService.getOne(lqw);
            if (user == null) {
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user", user.getId());
//登录成功  删除验证码  即实现了验证码的一次性
            redisTemplate.delete(phone);
            return R.success(user);
        }

        return R.error("登录失败");
    }

}